Ошибка при попытке получить несуществующее значение (внешний вид, password_hash) в LDAP

Я установил LDAP и phpLDAPadmin на мою Ubuntu 14.04 (Trusty Tahr). Он работает, и я могу получить доступ к phpLDAPadmin GUI, а также могу создавать OU и группы с помощью GUI, но я не могу создавать пользователей.

Когда я пытаюсь создать пользователя, я получаю следующую ошибку:

Error trying to get a non-existant value (appearance,password_hash)

This template uses a selection list for attribute [gidNumber], however the selection list is empty.
You may need to create some dependancy entries in your LDAP server so that this attribute renders with values.
 Alternatively, you may be able to define the appropriate selection values in the template file.


File /usr/share/phpldapadmin/lib/functions.php (444)
        Function error (a:5:{i:0;s:67:"Error trying to get a non-existant ...)
File /usr/share/phpldapadmin/lib/ds.php (81)
        Function debug_dump_backtrace (a:2:{i:0;s:67:"Error trying to get a non-existant ...)
File /usr/share/phpldapadmin/lib/TemplateRender.php (2469)
  Function getValue (a:2:{i:0;s:10:"appearance";i:1;s:13:"password_hash...)
File  /usr/share/phpldapadmin/lib/TemplateRender.php ()
  Function drawDefaultHelperPasswordAttribute (a:2:{i:0;O:17:"PasswordAttribute":34:{s:4:"name";s...)
File  /usr/share/phpldapadmin/lib/Visitor.php (58)
        Function call_user_func_array (a:2:{i:0;a:2:{i:0;O:14:"TemplateRender":9:{s:24:"...)
File /usr/share/phpldapadmin/lib/PageRender.php (1005)
        Function __call (a:2:{i:0;s:4:"draw";i:1;a:3:{i:0;s:13:"DefaultHelp...)
File /usr/share/phpldapadmin/lib/PageRender.php (1005)
        Function draw (a:3:{i:0;s:13:"DefaultHelper";i:1;O:17:"PasswordAt...)
File /usr/share/phpldapadmin/lib/PageRender.php ()
        Function drawFormReadWriteValuePasswordAttribute (a:2:{i:0;O:17:"PasswordAttribute":34:{s:4:"name";s...)
File /usr/share/phpldapadmin/lib/Visitor.php (58)
        Function call_user_func_array (a:2:{i:0;a:2:{i:0;O:14:"TemplateRender":9:{s:24:"...)
File /usr/share/phpldapadmin/lib/PageRender.php (596)
        Function __call (a:2:{i:0;s:4:"draw";i:1;a:3:{i:0;s:18:"FormReadWri...)
File /usr/share/phpldapadmin/lib/PageRender.php (596)
        Function draw (a:3:{i:0;s:18:"FormReadWriteValue";i:1;O:17:"Passw...)
File /usr/share/phpldapadmin/lib/PageRender.php ()
        Function drawFormValueAttribute (a:2:{i:0;O:17:"PasswordAttribute":34:{s:4:"name";s...)
File /usr/share/phpldapadmin/lib/Visitor.php (58)
        Function call_user_func_array (a:2:{i:0;a:2:{i:0;O:14:"TemplateRender":9:{s:24:"...)
File /usr/share/phpldapadmin/lib/TemplateRender.php (2159)
        Function __call (a:2:{i:0;s:4:"draw";i:1;a:3:{i:0;s:9:"FormValue";i...)
File /usr/share/phpldapadmin/lib/TemplateRender.php (2159)
        Function draw (a:3:{i:0;s:9:"FormValue";i:1;O:17:"PasswordAttribu...)
File /usr/share/phpldapadmin/lib/TemplateRender.php ()
        Function drawValueAttribute (a:2:{i:0;O:17:"PasswordAttribute":34:{s:4:"name";s...)